Introduction to Steam Boilers
Steam boilers are essential thermal energy systems that generate steam for industrial processes, heating, and power generation. As versatile powerhouses, steam boilers come in various designs to meet different capacity, pressure, and fuel requirements. Understanding the types of steam boilers helps industries select the most efficient and reliable systems for their operations. This article explores the fundamentals of steam boilers, highlights ZOZEN’s advanced boiler technologies, and explains why ZOZEN stands out among global manufacturers.
Part 1: Understanding Steam Boilers and Their Types
What Are Steam Boilers?
Steam boilers are closed vessels that heat water to produce steam under pressure. They are widely used in industries such as power generation, food processing, textiles, and chemical manufacturing. Key components include:
Burner (for fuel combustion)
Heat exchanger (transfers heat to water)
Steam drum (separates steam from water)
Safety valves (prevent overpressure)
Main Types of Steam Boilers
Fire-Tube Boilers
Hot gases pass through tubes submerged in water
Best for low to medium pressure (≤2.5 MPa)
Compact and cost-effective
Water-Tube Boilers
Water circulates inside tubes heated by external combustion
Handles high pressure (up to 10 MPa+)
Faster steam generation
Biomass Boilers
Burn wood, agricultural waste, or pellets
Eco-friendly with carbon-neutral operation
Waste Heat Recovery Boilers
Capture industrial exhaust heat
Improve overall energy efficiency
Each type of steam boiler serves specific industrial needs, balancing efficiency, cost, and environmental impact.
Part 2: ZOZEN Steam Boilers – main product series and advantages

WNS series condensing two pass gas/oil-fired boiler
First pass: the combustion chamber of corrugated furnace transfers radiant heat through the furnace wall.
Second pass: thread smoke tubes respectively arranged on both sides of furnace.
Advantages:
Sufficient capacity
Double layer insulation design
Smoke chamber door adopts hinge structure and window type.
Automatic control
Boiler paint film can be at least as thick as 150um.
Add economizer and condenser
Overall design of body wiring to shorten installation time and cost
Threaded smoke tube to strengthen heat transfer to improve boiler heat efficiency.
Corrugated furnace to enhance the disturbance of flue gas and increase the strength and elasticity of the furnace.
SZS series condensing gas/oil fired boiler
The boiler adopts the double drum horizontal design with the chamber combustion D-type structure
Advantages:
Manhole are arranged on both sides of the boiler drums, and inspection doors are arranged at the rear of the boiler,which is convenient for users to inspect and clean the boiler inside and outside.
The paint film can be at least as thick as 150um,it effectively prevents seawater corrosion during transportation.After sandblasting, 4 layers paint and 1 layer varnish are sprayed with high quality paint and automobile painting technology
D-type arrangement with full membrane wall structure
Good quality alumina silicate fiber and fire clay insulation are used. The boiler body temperature is controlled below 45℃。
The boiler has explosion door and flame detector for safe and reliable operation
The boiler adopts full-membrance wall combustion chamber, with pressurized firing without smoke mixture and pollution.
Conclusion
Selecting the right type of steam boiler is crucial for industrial efficiency and sustainability. ZOZEN Boiler offers advanced steam boilers that combine cutting-edge technology, robust engineering, and smart automation to deliver superior performance.
Why ZOZEN?
Industry-leading efficiency
Customized solutions for unique needs
Global support with quick response
Contact ZOZEN today to find the perfect steam boiler solution for your industry!
LEAVE A MESSAGE
For all inquiries, please fill in the form below (* are required) to send us a brief message, and we will get back to you as soon as possible.
Thanks for your subsmission! ZOZEN sales managers will contact you within 48 hours. Please check your email or whatsapp in time. If you do not receive the email in your normal inbox, please check your spam mail folder.